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pantera1 [17]
3 years ago
10

I need help, please?

Mathematics
2 answers:
Drupady [299]3 years ago
6 0

x is timed by .5 in the first one (A) which would make it the linear function.

Kazeer [188]3 years ago
5 0

For this case we observe that the first table has a constant rate of change.

In linear functions, the rate of change is constant.

To prove it, we will find the rate of change for two different intervals.

Interval 1:

m = \frac{1-\frac{1}{2}}{2-1}

m = \frac{\frac{1}{2}}{1}

m = \frac{1}{2}

Interval 2:

m = \frac{2-\frac{1}{2}}{4-1}

m = \frac{\frac{3}{2}}{3}

m = \frac{3}{6}

m = \frac{1}{2}

Since the rate of change is constant, then the function is linear.

Answer:

The first table is a linear function.

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The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives an
Mashcka [7]

Answer:

Step-by-step explanation:

To calculate ;

1) the expected value of the job satisfaction score for senior executives ;

expected value = Summation (Px)

= 1 x 0.05 + 2 x 0.09 + 3 x 0.03 + 4 x 0.42 + 5 x 0.41

= 4.05

2) the expected value of the job satisfaction score for middle managers;

= 1 x 0.04 + 2 x 0.10 + 3 x 0.12 + 4 x 0.46 + 5 x 0.28

= 3.84

c) the variance of job satisfaction scores for executives and middle managers (to 2 decimals).

Executives ; Variance = Summation(PX^2 - Summation(PX)^2

i) For Executive Managers = 1 x 0.05 + 2^2 x 0.09 + 3^2 x 0.03 + 4^2 x 0.42 + 5^2 x 0.41 - 4.05^2 = 1.246 = 1.25

ii) for middle managers ; 1 x 0.04 + 2^2 x 0.10 + 3^2 x 0.12 + 4^2 x 0.46 + 5^2 x 0.28 - 3.84^2 = 1.134 = 1.13

d) the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Executives, Middle managers;

For Executives = square root [ 1 x 0.05 + 2^2 x 0.09 + 3^2 x 0.03 + 4^2 x 0.42 + 5^2 x 0.41 - 4.05^2] = 1.12

For Middle Managers ; Square root [1 x 0.04 + 2^2 x 0.10 + 3^2 x 0.12 + 4^2 x 0.46 + 5^2 x 0.28 - 3.84^2 ] = 1.06

e) from the values gotten for the variance of both executive and middle managers, the variance of the former is more than that of the latter as such higher satisfaction with the executive managers.

5 0
3 years ago
Where was a error made in combining and solving the equation below?
Lera25 [3.4K]
It should be a positive 5 not a negative so the error was made at the end because u divide
3 0
3 years ago
A bucket contains one green block, one red block, and two yellow blocks. You choose one block from the bucket.
nalin [4]
A. 1/4; 2/4=1/2; 1/4
b. 1
c. 3/4. There are 4 blocks and 3 are not red
d. 1/4+3/4= 4/4=1


8 0
3 years ago
Perform the following operation, and report the answer to the correct number of significant figures. 3.47 x 6.7
kobusy [5.1K]

Answer:

23

Step-by-step explanation:

3.47 = 3 sig. figs.

6.7 = 2 sig. figs.

Since these two numbers are being multiplied, you would round to the smallest number of sig. figs. of the two. In this case, it would be 2 significant figures.

3.47 * 6.7 = 23.249 (dont forget to round to 2 sig. figs. ) --> 23

6 0
3 years ago
What’s the awnser to this mathematics equation
Anestetic [448]

Answer:

Half of 9

So 4.5

6 0
3 years ago
Read 2 more answers
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